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Primary 4 | Maths
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Choo
Choo

Primary 4 chevron_right Maths chevron_right Singapore

Pls help

Date Posted: 4 years ago
Views: 522

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1 pen = 0.65
3 pen = 0.65x3 = 1.95
With free 1 Pen for every 3 bought
4 pen = 1.95

30 pens = 7 sets of 4 (which = 28) + 2 pen
= 7x1.95 + 0.65 + 0.65 = $14.95
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